From: Frederic Weisbecker <fweisbec@gmail.com>
To: Ingo Molnar <mingo@kernel.org>
Cc: "Linus Torvalds" <torvalds@linux-foundation.org>,
"Dave Jones" <davej@redhat.com>, "Chris Mason" <clm@fb.com>,
"Mike Galbraith" <umgwanakikbuti@gmail.com>,
"Peter Zijlstra" <peterz@infradead.org>,
"Dâniel Fraga" <fragabr@gmail.com>,
"Sasha Levin" <sasha.levin@oracle.com>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] sched: Fix lost reschedule in __cond_resched()
Date: Sun, 14 Dec 2014 19:04:11 +0100 [thread overview]
Message-ID: <20141214180409.GB12622@lerouge> (raw)
In-Reply-To: <20141213073634.GD32572@gmail.com>
On Sat, Dec 13, 2014 at 08:36:34AM +0100, Ingo Molnar wrote:
>
> * Linus Torvalds <torvalds@linux-foundation.org> wrote:
>
> > I'm also not sure if the bug ever happens with preemption
> > disabled. Sasha, was that you who reported that you cannot
> > reproduce it without preemption? It strikes me that there's a
> > race condition in __cond_resched() wrt preemption, for example:
> > we do
> >
> > __preempt_count_add(PREEMPT_ACTIVE);
> > __schedule();
> > __preempt_count_sub(PREEMPT_ACTIVE);
> >
> > and in between the __schedule() and __preempt_count_sub(), if
> > an interrupt comes in and wakes up some important process, it
> > won't reschedule (because preemption is active), but then we
> > enable preemption again and don't check whether we should
> > reschedule (again), and we just go on our merry ways.
>
> Indeed, that's a really good find regardless of whether it's the
> source of these lockups - the (untested) patch below ought to
> cure that.
>
> > Now, I don't see how that could really matter for a long time -
> > returning to user space will check need_resched, and sleeping
> > will obviously force a reschedule anyway, so these kinds of
> > races should at most delay things by just a tiny amount, but
> > maybe there is some case where we screw up in a bigger way. So
> > I do *not* believe that the one in __cond_resched() matters,
> > but I'm giving it as an example of the kind of things that
> > could go wrong.
>
> (as you later note) NOHZ is somewhat special in this regard,
> because there we try really hard not to run anything
> periodically, so a lost reschedule will matter more.
>
> But ... I'd be surprised if this patch made a difference: it
> should normally not be possible to go idle with tasks on the
> runqueue (even with this bug present), and with at least one busy
> task on the CPU we get the regular scheduler tick which ought to
> hide such latencies.
>
> It's nevertheless a good thing to fix, I'm just not sure it's the
> root cause of the observed lockup here.
>
> Thanks,
>
> Ingo
>
> --
>
> Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
>
> diff --git a/kernel/sched/core.c b/kernel/sched/core.c
> index bb398c0c5f08..532809aa0544 100644
> --- a/kernel/sched/core.c
> +++ b/kernel/sched/core.c
> @@ -4207,6 +4207,8 @@ static void __cond_resched(void)
> __preempt_count_add(PREEMPT_ACTIVE);
> __schedule();
> __preempt_count_sub(PREEMPT_ACTIVE);
> + if (need_resched())
> + __schedule();
> }
Nice catch! This indeed matters a lot for full nohz where a lost reschedule
interrupt might be ignored and not fixed with a near tick. Although even if
it is fixed by a tick, a missed reschedule delayed by HZ involves latency issue.
Anyway, probably the above __schedule() should stay as a preemption point
to make sure that a TASK_[UN]INTERRUPTIBLE is handled as expected and avoids
early task deactivation.
Such as:
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
---
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 240157c..6e942f3 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2922,6 +2922,21 @@ void __sched schedule_preempt_disabled(void)
preempt_disable();
}
+static void __preempt_schedule(void)
+{
+ do {
+ __preempt_count_add(PREEMPT_ACTIVE);
+ __schedule();
+ __preempt_count_sub(PREEMPT_ACTIVE);
+
+ /*
+ * Check again in case we missed a preemption opportunity
+ * between schedule and now.
+ */
+ barrier();
+ } while (need_resched());
+}
+
#ifdef CONFIG_PREEMPT
/*
* this is the entry point to schedule() from in-kernel preemption
@@ -2937,17 +2952,7 @@ asmlinkage __visible void __sched notrace preempt_schedule(void)
if (likely(!preemptible()))
return;
- do {
- __preempt_count_add(PREEMPT_ACTIVE);
- __schedule();
- __preempt_count_sub(PREEMPT_ACTIVE);
-
- /*
- * Check again in case we missed a preemption opportunity
- * between schedule and now.
- */
- barrier();
- } while (need_resched());
+ __preempt_schedule();
}
NOKPROBE_SYMBOL(preempt_schedule);
EXPORT_SYMBOL(preempt_schedule);
@@ -4249,9 +4254,7 @@ SYSCALL_DEFINE0(sched_yield)
static void __cond_resched(void)
{
- __preempt_count_add(PREEMPT_ACTIVE);
- __schedule();
- __preempt_count_sub(PREEMPT_ACTIVE);
+ __preempt_schedule();
}
int __sched _cond_resched(void)
next prev parent reply other threads:[~2014-12-14 18:04 UTC|newest]
Thread overview: 483+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-14 21:31 frequent lockups in 3.18rc4 Dave Jones
2014-11-14 22:01 ` Linus Torvalds
2014-11-14 22:30 ` Dave Jones
2014-11-14 22:55 ` Thomas Gleixner
2014-11-14 23:32 ` Dave Jones
2014-11-15 0:36 ` Thomas Gleixner
2014-11-15 2:40 ` Dave Jones
2014-11-16 12:16 ` Thomas Gleixner
2014-11-15 1:59 ` Linus Torvalds
2014-11-17 21:22 ` Linus Torvalds
2014-11-17 22:31 ` Thomas Gleixner
2014-11-17 22:43 ` Thomas Gleixner
2014-11-17 22:58 ` Jens Axboe
2014-11-17 23:59 ` Linus Torvalds
2014-11-18 0:15 ` Thomas Gleixner
2014-11-17 23:04 ` Jens Axboe
2014-11-17 23:17 ` Thomas Gleixner
2014-11-18 2:23 ` Jens Axboe
2014-11-15 21:34 ` Dave Jones
2014-11-16 1:40 ` Dave Jones
2014-11-16 6:33 ` Linus Torvalds
2014-11-16 10:06 ` Markus Trippelsdorf
2014-11-16 18:33 ` Linus Torvalds
2014-11-17 17:03 ` Dave Jones
2014-11-17 19:59 ` Linus Torvalds
2014-11-18 2:09 ` Dave Jones
2014-11-18 2:21 ` Linus Torvalds
2014-11-18 2:39 ` Dave Jones
2014-11-18 2:51 ` Linus Torvalds
2014-11-18 14:52 ` Dave Jones
2014-11-18 17:20 ` Linus Torvalds
2014-11-18 19:28 ` Thomas Gleixner
2014-11-18 21:25 ` Don Zickus
2014-11-18 21:31 ` Dave Jones
2014-11-18 18:54 ` Thomas Gleixner
2014-11-18 21:55 ` Don Zickus
2014-11-18 22:02 ` Dave Jones
2014-11-19 14:41 ` Don Zickus
2014-11-19 15:03 ` Vivek Goyal
2014-11-19 15:38 ` Dave Jones
2014-11-19 16:28 ` Vivek Goyal
2014-11-20 16:10 ` Dave Jones
2014-11-20 16:48 ` Vivek Goyal
2014-11-20 17:38 ` Dave Jones
2014-11-21 9:46 ` Dave Young
2014-11-20 16:54 ` Vivek Goyal
2014-11-20 9:54 ` Dave Young
2014-11-19 2:19 ` Dave Jones
2014-11-19 4:40 ` Linus Torvalds
2014-11-19 4:59 ` Dave Jones
2014-11-19 5:15 ` Dave Jones
2014-11-20 14:36 ` Frederic Weisbecker
2014-11-19 14:59 ` Dave Jones
2014-11-19 17:22 ` Linus Torvalds
2014-11-19 17:40 ` Linus Torvalds
2014-11-19 19:02 ` Frederic Weisbecker
2014-11-19 19:03 ` Andy Lutomirski
2014-11-19 23:00 ` Frederic Weisbecker
2014-11-19 23:07 ` Andy Lutomirski
2014-11-19 23:13 ` Frederic Weisbecker
2014-11-19 21:56 ` Thomas Gleixner
2014-11-19 22:56 ` Frederic Weisbecker
2014-11-19 22:59 ` Andy Lutomirski
2014-11-19 23:07 ` Frederic Weisbecker
2014-11-19 23:09 ` Thomas Gleixner
2014-11-19 23:50 ` Frederic Weisbecker
2014-11-20 12:23 ` Tejun Heo
2014-11-20 21:58 ` Thomas Gleixner
2014-11-20 22:06 ` Andy Lutomirski
2014-11-20 22:11 ` Tejun Heo
2014-11-20 22:42 ` Thomas Gleixner
2014-11-20 23:05 ` Tejun Heo
2014-11-20 23:08 ` Andy Lutomirski
2014-11-20 23:34 ` Linus Torvalds
2014-11-20 23:39 ` Tejun Heo
2014-11-20 23:55 ` Andy Lutomirski
2014-11-21 16:27 ` Tejun Heo
2014-11-21 16:38 ` Andy Lutomirski
2014-11-21 16:48 ` Linus Torvalds
2014-11-21 17:08 ` Steven Rostedt
2014-11-21 17:19 ` Linus Torvalds
2014-11-21 17:22 ` Andy Lutomirski
2014-11-21 18:22 ` Linus Torvalds
2014-11-21 18:28 ` Andy Lutomirski
2014-11-21 19:06 ` Linus Torvalds
2014-11-21 19:23 ` Steven Rostedt
2014-11-21 19:34 ` Linus Torvalds
2014-11-21 19:46 ` Linus Torvalds
2014-11-21 19:52 ` Andy Lutomirski
2014-11-21 20:14 ` Josh Boyer
2014-11-21 20:16 ` Andy Lutomirski
2014-11-21 20:23 ` Josh Boyer
2014-11-24 18:48 ` Konrad Rzeszutek Wilk
2014-11-24 19:07 ` Josh Boyer
2014-11-25 5:36 ` Jürgen Groß
2014-11-25 17:22 ` Linus Torvalds
2014-11-21 20:00 ` Dave Jones
2014-11-21 20:02 ` Andy Lutomirski
2014-11-21 19:51 ` Thomas Gleixner
2014-11-21 20:00 ` Linus Torvalds
2014-11-21 20:16 ` Thomas Gleixner
2014-11-21 20:41 ` Linus Torvalds
2014-11-21 21:11 ` Thomas Gleixner
2014-11-21 22:55 ` Linus Torvalds
2014-11-21 23:03 ` Andy Lutomirski
2014-11-21 23:33 ` Linus Torvalds
2014-12-16 19:28 ` Peter Zijlstra
2014-12-16 20:46 ` Linus Torvalds
2014-12-16 21:19 ` Mel Gorman
2014-12-16 23:02 ` Peter Zijlstra
2014-12-17 0:00 ` Linus Torvalds
2014-12-17 0:41 ` Andy Lutomirski
2014-12-17 17:01 ` Konrad Rzeszutek Wilk
2014-12-17 17:14 ` Peter Zijlstra
2014-11-21 22:33 ` Konrad Rzeszutek Wilk
2014-11-22 1:17 ` Thomas Gleixner
2014-11-21 17:34 ` Steven Rostedt
2014-11-21 18:24 ` Linus Torvalds
2014-11-21 22:10 ` Frederic Weisbecker
2014-11-21 2:33 ` Steven Rostedt
2014-11-21 0:54 ` Thomas Gleixner
2014-11-21 14:13 ` Frederic Weisbecker
2014-11-21 16:25 ` Tejun Heo
2014-11-21 17:01 ` Steven Rostedt
2014-11-21 17:11 ` Steven Rostedt
2014-11-21 21:32 ` Frederic Weisbecker
2014-11-21 21:34 ` Andy Lutomirski
2014-11-21 21:50 ` Frederic Weisbecker
2014-11-21 22:45 ` Steven Rostedt
2014-11-21 21:44 ` Frederic Weisbecker
2014-11-22 0:11 ` Tejun Heo
2014-11-22 0:18 ` Linus Torvalds
2014-11-22 0:41 ` Andy Lutomirski
2014-11-19 23:54 ` Andy Lutomirski
2014-11-20 0:00 ` Thomas Gleixner
2014-11-20 0:30 ` Andy Lutomirski
2014-11-20 0:40 ` Linus Torvalds
2014-11-20 0:49 ` Andy Lutomirski
2014-11-20 1:07 ` Linus Torvalds
2014-11-20 1:16 ` Andy Lutomirski
2014-11-20 2:42 ` Linus Torvalds
2014-11-20 6:16 ` Andy Lutomirski
2014-11-19 19:15 ` Andy Lutomirski
2014-11-19 19:38 ` Linus Torvalds
2014-11-19 22:18 ` Dave Jones
2014-11-19 21:01 ` Andy Lutomirski
2014-11-19 21:47 ` Dave Jones
2014-11-19 21:58 ` Borislav Petkov
2014-11-19 22:18 ` Dave Jones
2014-11-20 10:33 ` Borislav Petkov
2014-11-19 21:56 ` [PATCH] x86, syscall: Fix _TIF_NOHZ handling in syscall_trace_enter_phase1 Andy Lutomirski
2014-11-19 22:13 ` Thomas Gleixner
2014-11-20 20:33 ` Linus Torvalds
2014-11-20 22:07 ` Thomas Gleixner
2014-11-20 22:04 ` [tip:x86/urgent] " tip-bot for Andy Lutomirski
2014-11-20 15:25 ` frequent lockups in 3.18rc4 Dave Jones
2014-11-20 19:43 ` Linus Torvalds
2014-11-20 20:06 ` Dave Jones
2014-11-20 20:37 ` Don Zickus
2014-11-20 20:51 ` Linus Torvalds
2014-11-21 6:37 ` Ingo Molnar
2014-11-21 14:50 ` Dave Jones
2014-11-25 12:22 ` Will Deacon
2014-12-01 11:48 ` Will Deacon
2014-12-01 17:05 ` Linus Torvalds
2014-12-01 17:10 ` Will Deacon
2014-12-01 17:53 ` Linus Torvalds
2014-12-01 18:25 ` Kirill A. Shutemov
2014-12-01 18:36 ` Linus Torvalds
2014-12-04 10:51 ` Will Deacon
2014-12-04 14:56 ` Dave Jones
2014-12-05 13:49 ` Will Deacon
2014-11-20 15:04 ` Frederic Weisbecker
2014-11-20 15:08 ` Frederic Weisbecker
2014-11-20 16:19 ` Dave Jones
2014-11-20 16:42 ` Frederic Weisbecker
2014-11-26 0:25 ` Dave Jones
2014-11-26 1:48 ` Linus Torvalds
2014-11-26 2:40 ` Dave Jones
2014-11-26 22:57 ` Dave Jones
2014-11-27 0:46 ` Linus Torvalds
2014-11-27 19:17 ` Linus Torvalds
2014-11-27 22:56 ` Dave Jones
2014-11-29 20:38 ` Dâniel Fraga
2014-11-30 20:45 ` Linus Torvalds
2014-11-30 21:21 ` Dâniel Fraga
2014-12-01 0:21 ` Linus Torvalds
2014-12-01 1:02 ` Dâniel Fraga
2014-12-01 19:14 ` Paul E. McKenney
2014-12-01 20:28 ` Dâniel Fraga
2014-12-01 20:36 ` Linus Torvalds
2014-12-01 23:08 ` Chris Mason
2014-12-01 23:25 ` Linus Torvalds
2014-12-01 23:44 ` Chris Mason
2014-12-02 0:39 ` Linus Torvalds
2014-12-02 14:13 ` Mike Galbraith
2014-12-02 16:33 ` Linus Torvalds
2014-12-02 17:14 ` Chris Mason
2014-12-03 18:41 ` Dave Jones
2014-12-03 18:45 ` Linus Torvalds
2014-12-03 19:00 ` Dave Jones
2014-12-03 19:25 ` Linus Torvalds
2014-12-03 19:30 ` Dave Jones
2014-12-03 19:48 ` Linus Torvalds
2014-12-03 20:09 ` Dave Jones
2014-12-03 20:37 ` Linus Torvalds
2014-12-03 20:55 ` Thomas Gleixner
2014-12-03 21:14 ` Linus Torvalds
2014-12-03 22:19 ` Thomas Gleixner
2014-12-03 23:21 ` Dave Jones
2014-12-03 23:49 ` Thomas Gleixner
2014-12-04 0:19 ` Linus Torvalds
2014-12-04 1:02 ` Thomas Gleixner
2014-12-04 0:20 ` Dave Jones
2014-12-04 0:59 ` Thomas Gleixner
2014-12-04 1:32 ` Dave Jones
2014-12-04 3:45 ` Dave Jones
2014-12-03 19:56 ` John Stultz
2014-12-03 20:37 ` Thomas Gleixner
2014-12-03 20:44 ` Dave Jones
2014-12-03 20:59 ` Thomas Gleixner
2014-12-03 21:05 ` Dave Jones
2014-12-03 21:48 ` Thomas Gleixner
2014-12-03 20:39 ` Thomas Gleixner
2014-12-04 3:15 ` Chris Mason
2014-12-04 5:49 ` Linus Torvalds
2014-12-04 14:57 ` Chris Mason
2014-12-04 15:22 ` Dave Hansen
2014-12-04 15:30 ` Chris Mason
2014-12-03 19:59 ` Chris Mason
2014-12-03 20:11 ` Dave Jones
2014-12-03 20:56 ` Chris Mason
2014-12-04 0:27 ` Dave Jones
2014-12-05 17:15 ` Dave Jones
2014-12-05 18:38 ` Linus Torvalds
2014-12-05 18:48 ` Dave Jones
2014-12-05 19:31 ` Linus Torvalds
2014-12-05 19:37 ` Dave Jones
2014-12-06 22:38 ` Thomas Gleixner
2014-12-06 9:37 ` Chuck Ebbert
2014-12-06 16:22 ` Martin van Es
2014-12-06 20:09 ` Linus Torvalds
2014-12-06 20:41 ` Linus Torvalds
2014-12-06 21:14 ` Martin van Es
2014-12-12 12:58 ` Martin van Es
2014-12-15 12:07 ` Martin van Es
2014-12-06 22:14 ` Thomas Gleixner
2014-12-05 19:04 ` Chris Mason
2014-12-05 19:29 ` Linus Torvalds
2014-12-11 14:54 ` Dave Jones
2014-12-11 21:49 ` Linus Torvalds
2014-12-11 21:52 ` Sasha Levin
2014-12-11 21:57 ` Chris Mason
2014-12-11 22:00 ` Sasha Levin
2014-12-11 22:36 ` Linus Torvalds
2014-12-11 22:57 ` Sasha Levin
2014-12-12 6:54 ` Ingo Molnar
2014-12-12 23:54 ` Sasha Levin
2014-12-13 0:23 ` Linus Torvalds
2014-12-13 0:34 ` Sasha Levin
2014-12-13 0:44 ` Linus Torvalds
2014-12-13 16:28 ` Jeff Chua
2014-12-13 2:32 ` Dave Jones
2014-12-11 21:57 ` Borislav Petkov
2014-12-12 3:03 ` Dave Jones
2014-12-12 4:45 ` Dave Jones
2014-12-12 14:38 ` Dave Jones
2014-12-12 18:24 ` Paul E. McKenney
2014-12-12 18:10 ` Paul E. McKenney
2014-12-12 18:42 ` Dave Jones
2014-12-12 18:54 ` Dave Jones
2014-12-12 19:14 ` Linus Torvalds
2014-12-12 19:23 ` Dave Jones
2014-12-12 19:58 ` David Lang
2014-12-12 20:20 ` Linus Torvalds
2014-12-13 7:43 ` Ingo Molnar
2014-12-12 20:34 ` Paul E. McKenney
2014-12-12 21:23 ` Sasha Levin
2014-12-13 0:58 ` Paul E. McKenney
2014-12-13 12:08 ` Paul E. McKenney
2014-12-13 8:30 ` Ingo Molnar
2014-12-13 15:53 ` Sasha Levin
2014-12-13 18:07 ` Paul E. McKenney
2014-12-14 17:50 ` Paul E. McKenney
2014-12-14 23:46 ` Sasha Levin
2014-12-15 0:11 ` Paul E. McKenney
2014-12-15 1:20 ` Sasha Levin
2014-12-15 6:33 ` Paul E. McKenney
2014-12-15 12:56 ` Paul E. McKenney
2014-12-15 13:16 ` Sasha Levin
2014-12-16 3:40 ` Paul E. McKenney
2014-12-13 7:36 ` [PATCH] sched: Fix lost reschedule in __cond_resched() Ingo Molnar
2014-12-14 18:04 ` Frederic Weisbecker [this message]
2014-12-14 19:43 ` Ingo Molnar
2014-12-14 19:50 ` Linus Torvalds
2014-12-14 20:30 ` Frederic Weisbecker
2014-12-13 8:19 ` frequent lockups in 3.18rc4 Ingo Molnar
2014-12-13 8:27 ` Ingo Molnar
2014-12-13 14:15 ` Sasha Levin
2014-12-13 16:59 ` Dave Jones
2014-12-13 18:04 ` Paul E. McKenney
2014-12-13 20:41 ` Dave Jones
2014-12-14 4:04 ` Paul E. McKenney
2014-12-13 22:36 ` Dave Jones
2014-12-13 22:40 ` Linus Torvalds
2014-12-13 22:59 ` Linus Torvalds
2014-12-13 23:09 ` Linus Torvalds
2014-12-13 23:35 ` Al Viro
2014-12-13 23:38 ` Linus Torvalds
2014-12-13 23:47 ` Al Viro
2014-12-14 0:14 ` Linus Torvalds
2014-12-14 0:33 ` Al Viro
2014-12-14 1:35 ` Linus Torvalds
2014-12-14 3:14 ` Al Viro
2014-12-15 0:18 ` Al Viro
2014-12-13 23:39 ` Al Viro
2014-12-14 23:46 ` Dave Jones
2014-12-15 0:38 ` Linus Torvalds
2014-12-15 0:42 ` Dave Jones
2014-12-15 5:47 ` Linus Torvalds
2014-12-15 5:57 ` Dave Jones
2014-12-15 18:21 ` Linus Torvalds
2014-12-15 23:46 ` Linus Torvalds
2014-12-18 2:42 ` Sasha Levin
2014-12-18 2:45 ` Linus Torvalds
2014-12-18 5:13 ` Dave Jones
2014-12-18 15:54 ` Chris Mason
2014-12-18 16:12 ` Dave Jones
2014-12-19 2:45 ` Dave Jones
2014-12-19 3:49 ` Linus Torvalds
2014-12-19 3:58 ` Dave Jones
2014-12-19 4:03 ` Dave Jones
2014-12-19 4:48 ` Linus Torvalds
2014-12-19 11:35 ` Peter Zijlstra
2014-12-19 14:55 ` Dave Jones
2014-12-19 15:14 ` Chris Mason
2014-12-19 19:15 ` Linus Torvalds
2014-12-19 19:44 ` Peter Zijlstra
2014-12-19 19:51 ` Linus Torvalds
2014-12-19 20:46 ` Linus Torvalds
2014-12-19 20:54 ` Dave Jones
2014-12-19 22:05 ` Linus Torvalds
2014-12-20 16:49 ` Dave Jones
2014-12-19 20:31 ` Chris Mason
2014-12-19 20:36 ` Dave Jones
2014-12-19 23:22 ` Thomas Gleixner
2014-12-20 0:12 ` Chris Mason
2014-12-20 1:06 ` Thomas Gleixner
2014-12-19 23:14 ` Thomas Gleixner
2014-12-19 23:55 ` Linus Torvalds
2014-12-20 1:00 ` Thomas Gleixner
2014-12-20 1:57 ` Linus Torvalds
2014-12-20 18:25 ` Linus Torvalds
2014-12-20 21:16 ` Linus Torvalds
2014-12-21 3:52 ` Paul E. McKenney
2014-12-21 21:22 ` Linus Torvalds
2014-12-21 22:19 ` Linus Torvalds
2014-12-21 22:32 ` Dave Jones
2014-12-21 23:58 ` Linus Torvalds
2014-12-22 0:41 ` Linus Torvalds
2014-12-22 0:52 ` Linus Torvalds
2014-12-22 1:22 ` Dave Jones
2014-12-22 3:11 ` Paul E. McKenney
2014-12-22 19:47 ` Linus Torvalds
2014-12-22 20:06 ` Linus Torvalds
2014-12-22 22:57 ` Dave Jones
2014-12-22 23:59 ` Linus Torvalds
2014-12-23 14:56 ` Dave Jones
2014-12-24 13:58 ` Sasha Levin
2014-12-24 3:01 ` Dave Jones
2014-12-26 16:34 ` Dave Jones
2014-12-26 18:12 ` Dave Jones
2014-12-26 20:57 ` Linus Torvalds
2014-12-26 21:20 ` Dave Jones
2014-12-26 22:57 ` Dave Jones
2014-12-26 23:16 ` Linus Torvalds
2014-12-27 0:36 ` Dave Jones
2014-12-27 3:14 ` Linus Torvalds
2014-12-27 16:48 ` Dave Jones
2014-12-26 23:30 ` Linus Torvalds
2014-12-27 0:39 ` Dave Jones
2014-12-27 2:53 ` Dave Jones
2015-01-03 0:27 ` John Stultz
2015-01-03 14:58 ` Sasha Levin
2015-01-04 19:46 ` Linus Torvalds
2015-01-06 1:17 ` John Stultz
2015-01-06 1:25 ` Linus Torvalds
2015-01-06 2:05 ` John Stultz
2014-12-22 23:59 ` John Stultz
2014-12-23 0:46 ` Linus Torvalds
2014-12-27 20:33 ` Paul E. McKenney
2015-01-12 10:05 ` Thomas Gleixner
2014-12-19 14:30 ` Chris Mason
2014-12-19 15:12 ` Dave Jones
2014-12-18 18:54 ` Linus Torvalds
2014-12-15 14:00 ` Borislav Petkov
2014-12-18 21:17 ` save_xstate_sig (Re: frequent lockups in 3.18rc4) Andy Lutomirski
2014-12-18 21:34 ` Linus Torvalds
2014-12-18 21:41 ` Andy Lutomirski
2014-12-18 21:37 ` Dave Jones
2014-12-17 18:22 ` frequent lockups in 3.18rc4 Dave Jones
2014-12-17 18:57 ` Dave Jones
2014-12-17 19:24 ` Dave Jones
2014-12-17 19:51 ` Linus Torvalds
2014-12-17 20:16 ` Dave Jones
2014-12-17 19:41 ` Linus Torvalds
2014-12-06 5:04 ` Gene Heskett
2014-12-02 17:47 ` Mike Galbraith
2014-12-13 8:11 ` Ingo Molnar
2014-12-13 9:57 ` Mike Galbraith
2014-12-17 11:13 ` Peter Zijlstra
2014-12-02 19:32 ` Dave Jones
2014-12-02 23:32 ` Sasha Levin
2014-12-03 0:09 ` Linus Torvalds
2014-12-03 0:25 ` Sasha Levin
2014-12-05 5:00 ` Sasha Levin
2014-12-05 6:38 ` Linus Torvalds
2014-12-05 15:03 ` Sasha Levin
2014-12-05 18:15 ` Linus Torvalds
2014-12-07 14:58 ` Sasha Levin
2014-12-07 18:24 ` Paul E. McKenney
2014-12-07 19:43 ` Paul E. McKenney
2014-12-07 23:28 ` Sasha Levin
2014-12-08 5:20 ` Paul E. McKenney
2014-12-08 14:33 ` Sasha Levin
2014-12-08 15:28 ` Sasha Levin
2014-12-08 15:57 ` Paul E. McKenney
2014-12-08 16:34 ` Sasha Levin
2014-12-08 15:56 ` Paul E. McKenney
2014-12-07 23:53 ` Linus Torvalds
2014-12-02 19:31 ` Dave Jones
2014-12-02 21:17 ` Linus Torvalds
2014-12-02 20:30 ` Dave Jones
2014-12-02 20:48 ` Paul E. McKenney
2014-12-01 23:08 ` Paul E. McKenney
2014-12-02 16:43 ` Dâniel Fraga
2014-12-02 17:04 ` Paul E. McKenney
2014-12-02 17:14 ` Dâniel Fraga
2014-12-02 18:42 ` Paul E. McKenney
2014-12-02 18:47 ` Dâniel Fraga
2014-12-02 19:11 ` Paul E. McKenney
2014-12-02 19:24 ` Dâniel Fraga
2014-12-02 20:56 ` Paul E. McKenney
2014-12-02 22:01 ` Dâniel Fraga
2014-12-02 22:10 ` Paul E. McKenney
2014-12-02 22:18 ` Dâniel Fraga
2014-12-02 22:35 ` Paul E. McKenney
2014-12-02 22:10 ` Linus Torvalds
2014-12-02 22:16 ` Dâniel Fraga
2014-12-03 3:21 ` Dâniel Fraga
2014-12-03 4:14 ` Linus Torvalds
2014-12-03 4:51 ` Dâniel Fraga
2014-12-03 6:02 ` Chris Rorvick
2014-12-03 15:22 ` Linus Torvalds
2014-12-04 8:43 ` Dâniel Fraga
2014-12-04 16:18 ` Linus Torvalds
2014-12-04 16:52 ` Frederic Weisbecker
2014-12-04 17:25 ` Dâniel Fraga
2014-12-04 17:47 ` Linus Torvalds
2014-12-04 18:07 ` Dâniel Fraga
2014-12-03 14:54 ` Tejun Heo
2014-12-02 18:09 ` Paul E. McKenney
2014-12-02 18:41 ` Dâniel Fraga
2014-12-02 17:08 ` Linus Torvalds
2014-12-02 17:16 ` Dâniel Fraga
2014-12-02 8:40 ` Lai Jiangshan
2014-12-02 16:58 ` Paul E. McKenney
2014-12-02 16:58 ` Dâniel Fraga
2014-12-02 17:17 ` Paul E. McKenney
2014-12-03 2:03 ` Lai Jiangshan
2014-12-03 5:22 ` Paul E. McKenney
2014-12-01 16:56 ` Don Zickus
2014-11-26 4:39 ` Jürgen Groß
[not found] ` <CA+55aFx1SiFBzmA=k9jHxi3cZE3Ei_+2NHepujgf86KEvkz8eQ@mail.gmail.com>
2014-11-26 5:11 ` Dave Jones
2014-11-26 5:24 ` Juergen Gross
2014-11-26 5:52 ` Linus Torvalds
2014-11-26 6:21 ` Linus Torvalds
2014-11-26 6:52 ` Juergen Gross
2014-11-26 9:44 ` Juergen Gross
2014-11-26 14:34 ` Dave Jones
2014-11-26 17:37 ` Linus Torvalds
2014-11-20 15:28 ` Frederic Weisbecker
2014-11-17 15:07 ` Don Zickus
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